The chip is listed in The Chip Rack (TCR). It is catalogued as chip # N7734. The book value of a Well Used version is "J" $50 - $59.

What is not indicated yet, is the following...

Your chip(s) appear to be in better condition than Well Used (WU) and I would guess, Slightly Used (SU). Which would normally mean a higher value could be ascribed to your chip. HOWEVER!!!!

Your chip(s) is/are damaged by having been drilled. Drill hole damage, whether it be done for a necklace, or for purposes of cancellation, still cause the value of a chip to be between 20 and 30 % of the undamaged value, unless all existing examples are also drilled.

No mater what, I would say nice find(s)!

Jim